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AMD Radeon HD 7640G + HD 7670M Dual Graphics vs AMD Radeon HD 7630M

AMD Radeon HD 7640G + HD 7670M Dual Graphics

► remove from comparison

The AMD Radeon HD 7640G + HD 7670M Dual Graphics is the combination of a integrated AMD Radeon HD 7640G APU processor graphics card and a dedicated entry level AMD Radeon HD 7670M graphics card in CrossFire combination. It is called AMD Dual Graphics or asymmetric CrossFire and uses AFR (Alternate Frame Rendering) to render different frames on the two graphic cores. Therefore the combination also suffers from micro stuttering (different spaces between two images lead to stuttering altough the framerate is high enough for fluent gaming with only one GPU).

The performance of the Dual Graphics solution depends greatly on the driver support for the used games. In some games the performance may even degrade by 10-15% compared to using only the APU graphics card. Therefore, due to the micro stuttering and performance problems, Dual Graphics may impose more problems than bring performance gains. Only in a best case scenario the performance is similar to the GeForce GT 635M.

The features like PureVideo HD (UVD3) or OpenCL support are similar to the two graphics cards.

As both graphics cards are rendering frames, the power consumption is clearly higher than using only one GPU.

AMD Radeon HD 7630M

► remove from comparison AMD Radeon HD 7630M

The AMD Radeon HD 7630M (sometimes also called AMD Radeon HD 7630M) is a middle class graphics card for laptops in 2011. It is based on the same chip as the Radeon HD 6630M and the 6 SIMD blocks (= 480 shader) are clocked at 450 MHz. The card is still build in 40nm and supports DirectX 11.

The 480 Stream processors are still based on the 5D architecture similar to the 5000 series. Therefore, the number of shaders is not comparable to the 1D cores of current Nvidia GPUs. The Tessellation performance should be improved (like the desktop 6800 series) with the new cards. The Stream processors can be used with DirectX 11, OpenGL 4.1, DirectCompute 11 and OpenCL. With the later two the cores can also be used for general computations like transcoding videos.

The 3D performance should be similar to the Radeon HD 6630M due to the comparable clock rates and the 480 shaders. Therefore, demanding games of 2011 like Battlefield 3 or Anno 2070 are running only in low detail settings fluently. Games with less demanding 3D engines like CoD MW3 should also run in high details.

The new UVD3 video decoder supports the decoding of MPEG-4 AVC/H.264, VC-1, MPEG-2, Flash and now also Multi-View Codec (MVC) and MPEG-4 part 2 (DivX, xVid) HD videos on the graphics card.

Furthermore, the HD 7600M series integrates a HD audio controller to transmit HD Audio (TrueHD or DTS Master Audio) over HDMI and DisplayPort (e.g. for Blu-Ray videos).

The AMD HD3D Technology offers support for Blu-Ray 3D and 3D displays (integrated and external). However, the solution is not as mature as Nvidias 3D Vision.

Thanks to Eyefinity the graphics chip is able to theoretically drive up to 5 monitors simultaneously. However, this only works if the laptop features enough DisplayPort outputs.

The power consumption of the chip should be slightly below the Radeon HD 6630M and therefore suited for smaller laptops (13-14").

AMD Radeon HD 7640G + HD 7670M Dual GraphicsAMD Radeon HD 7630M
Radeon HD 7600M Series
Radeon HD 7690M XT compare 480 @ 0.73 GHz128 Bit @ 3600 MHz
Radeon HD 7690M compare 480 @ 0.6 - 0.73 GHz128 Bit @ 3600/1800 MHz
Radeon HD 7660G + HD 7670M Dual Graphics compare 862 @ 0.69 GHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7670M Dual Graphics 736 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7520G + HD 7670M Dual Graphics compare 736 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7670M compare 480 @ 0.6 GHz128 Bit @ 1800 MHz
Radeon HD 7650M compare 480 @ 0.45 - 0.55 GHz128 Bit @ 1800 MHz
Radeon HD 7630M 480 @ 0.45 GHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7610M Dual Graphics compare 656 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7610M compare 400 @ 0.45 GHz128 Bit @ 1600 MHz
Radeon HD 7690M XT compare 480 @ 0.73 GHz128 Bit @ 3600 MHz
Radeon HD 7690M compare 480 @ 0.6 - 0.73 GHz128 Bit @ 3600/1800 MHz
Radeon HD 7660G + HD 7670M Dual Graphics compare 862 @ 0.69 GHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7670M Dual Graphics 736 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7520G + HD 7670M Dual Graphics compare 736 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7670M compare 480 @ 0.6 GHz128 Bit @ 1800 MHz
Radeon HD 7650M compare 480 @ 0.45 - 0.55 GHz128 Bit @ 1800 MHz
Radeon HD 7630M 480 @ 0.45 GHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7610M Dual Graphics compare 656 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7610M compare 400 @ 0.45 GHz128 Bit @ 1600 MHz
ArchitectureTerascale 3Terascale 2
Pipelines736 - unified480 - unified
Core Speed655 / 600 MHz450 MHz
Memory Speed1800 MHz1800 MHz
Memory Bus Width128 Bit128 Bit
Shared Memoryyesno
APIDirectX 11, Shader 5.0, OpenGL 4.2DirectX 11, Shader 5.0
technology40 nm40 nm
Notebook Sizemedium sizedmedium sized
Date of Announcement15.05.2012 07.01.2012
CodenameThames-LP
Memory TypeDDR3

Benchmarks

Performance Rating - 3DMark 11 + Fire Strike + Time Spy - Radeon HD 7640G + HD 7670M Dual Graphics
0.3 pt (1%)
3DMark - 3DMark Cloud Gate Score
min: 3566     avg: 3709     median: 3566 (4%)     max: 3995 Points
3DMark - 3DMark Cloud Gate Graphics
min: 5715     avg: 6138     median: 5715 (2%)     max: 6983 Points
3DMark - 3DMark Fire Strike Standard Score
min: 529     avg: 571     median: 529 (1%)     max: 654 Points
3DMark - 3DMark Fire Strike Standard Graphics
min: 623     avg: 666     median: 623 (1%)     max: 753 Points
3DMark - 3DMark Ice Storm Graphics
min: 37273     avg: 48282     median: 53786 (6%)     max: 53786 Points
3DMark 11 - 3DM11 Performance Score
min: 1585     avg: 1626     median: 1628 (2%)     max: 1664 Points
3DMark 11 - 3DM11 Performance GPU
min: 1629     avg: 1671     median: 1649 (1%)     max: 1757 Points
3DMark Vantage
3DM Vant. Perf. total + AMD Radeon HD 7640G + HD 7670M Dual Graphics
3DMark Vantage - 3DM Vant. Perf. total
min: 4696     avg: 4970     median: 5049 (1%)     max: 5085 Points
3DM Vant. Perf. GPU no PhysX + AMD Radeon HD 7640G + HD 7670M Dual Graphics
3DMark Vantage - 3DM Vant. Perf. GPU no PhysX
min: 4554     avg: 4812     median: 4887 (3%)     max: 4918 Points
3DMark 03 - 3DMark 03 - Standard
21584 Points (11%)
3DMark 05 - 3DMark 05 - Standard
min: 10288     avg: 10403     median: 10288 (11%)     max: 10632 Points
3DMark 06 3DMark 06 - Standard 1280x1024 + AMD Radeon HD 7640G + HD 7670M Dual Graphics
3DMark 06
min: 7090     avg: 8122     median: 8451.5 (11%)     max: 8493 Points
Unigine Heaven 3.0 - Unigine Heaven 3.0 DX 11
13.9 fps (5%)
Unigine Heaven 3.0 - Unigine Heaven 3.0 OpenGL
10.6 fps (5%)
Cinebench R10 Cinebench R10 Shading (32bit) + AMD Radeon HD 7640G + HD 7670M Dual Graphics
Cinebench R10 - Cinebench R10 Shading (32bit)
min: 4566     avg: 4589     median: 4589 (3%)     max: 4612 Points
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit + AMD Radeon HD 7640G + HD 7670M Dual Graphics
Cinebench R11.5 - Cinebench R11.5 OpenGL 64 Bit
min: 17.26     avg: 24.4     median: 24.4 (8%)     max: 31.57 fps
LuxMark v2.0 64Bit - LuxMark v2.0 Room GPU
145 Samples/s (1%)
LuxMark v2.0 64Bit - LuxMark v2.0 Sala GPU
342 Samples/s (1%)
ComputeMark v2.1 - ComputeMark v2.1 Result
772 Points (1%)

Average Benchmarks AMD Radeon HD 7640G + HD 7670M Dual Graphics → 0% n=

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.

Crysis 3

Crysis 3

2013
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
28.7  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
15  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
10.5  fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
99.2  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
45.9  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
35.9  fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
19.9  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
18.7  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
13.4  fps
Fifa 13

Fifa 13

2012
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
130.8 133 ~ 132 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
100.9 108 ~ 104 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
99.4 103 ~ 101 fps
ultra 1920x1080
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
65 71 ~ 68 fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
34.2 37.4 ~ 36 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
26.7  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
25.5  fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
78.5 96 98 ~ 91 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
74 74 ~ 74 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
65.4 70 ~ 68 fps
ultra 1920x1080
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
43.3 48 ~ 46 fps
Anno 2070

Anno 2070

2011
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
69 74.9 90 ~ 78 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
28 31.8 ~ 30 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
19 20.6 ~ 20 fps
low 1280x720
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
35.1  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
30.8  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
25.1  fps
F1 2011

F1 2011

2011
low 800x600
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
59  fps
med. 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
37  fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
95.5  fps
Dirt 3

Dirt 3

2011
low 800x600
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
70.3  fps
med. 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
41.3  fps

Average Gaming AMD Radeon HD 7640G + HD 7670M Dual Graphics → 100%

Average Gaming 30-70 fps → 100%

AMD Radeon HD 7640G + HD 7670M Dual Graphicslowmed.highultraQHD4K
Crysis 328.71510.5
Dead Space 399.245.935.9
Hitman: Absolution19.918.713.4
Fifa 1313210410168
Dirt Showdown3626.725.5
Diablo III91746846
Anno 2070783020
The Elder Scrolls V: Skyrim35.130.825.1
F1 20115937
Deus Ex Human Revolution95.5
Dirt 370.341.3
< 30 fps
< 60 fps
< 120 fps
≥ 120 fps
2
3
5
1
3
5
2
5
1
2

1
1






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